Window frame



Aug. 10, 1926. F.'C. ANDERSEN WINDOW FRAME Filed Oct. 12 1925 2 Sheets-Sheet l firm CAA/DERSEN 4-1- 'TOFPA/EYS F. C. ANDERSEN WINDOW FRAME 2 Sheets-Sheet 2 Filed Ocg. l2

fizmn/oz fiFfD CAA/DERJEN F M W W Patented All. ,l, i920 rnnn c. ANDERSEN, or navron'r, mrnn'nso'ra.

Application filed October 12, 1925. Serial No. 62,082.

The object of my invention is to provide one type of Window frame in which provision is made for the use of either a narrow or wide blind stop as may be desiredlby the architect or builder, depending upon the quality of Construction used in the building, the narrow stop being designed for use in frame buildings of less expensive construction, the wide stop adding to the expense or the frame, being adapted particularly for use in buildings of the better class to exclude the entrance 01? air and dust into the building around the window and also to provide a smooth surface with which the sash weight may contact and slide thereon without obstruction. i

A further objectis to provide a blind stop structure that is adapted for use with amullioii window as well as one of a single type;

A further object is to provide a blind stop construction which will not add materially to the cost of the frame and ill greatly improve the wall around the window frame as a means for excluding cold air 1 from the building.

The invention consists generally in various constructions and combinations all as hereinafter described and particularly pointed ,out in the claims. fi-

In the accompanying drawings forming part of this specification,

Figure 1 is a perspective view ofa window frame showing a narrow form oi: blind stop on each side and at the head of the window Figure 2 is a similar view showing the frame equipped with a wide blind stop on each sidewith provision for a wide stop at the head of the window;

Figure 3 is a horizontal sectional view through a window jamb showing the usual method of housing construction where the sheathing terminates at a point remote from the narrow blind stop, allowing opportunity for cold air to enter thebuildin and the'projecting ends of the sheathingmter fering with the freedon of movement of the sash weights;

Figure 5 is a similar view showing a -some what narrower; type of the wide blind sto tion; t

Figure 8 is a' vertical sectional view thro gh the head of a window frame showing the preferred construction of the blind stop at this point.

In the drawing, 2 represents a window framesill having the standard stops or shoulders 2 and 2 thereon. 3 the studding between which the frame is inserted. d are the window jambs having the usual parting beads 5, and 6 is the head of the frame opposite to and parallel with the sill. The ends of the sill are suitably notched to receive the lower ends of the jambs' and to fit around the studding; all being well known construction blind stop, its inner edge projecting beyond the face of the iamb about the samedistance as the parting cad and forming a seat for the outside blind of the window. Hence, the name blind stop piece of work by the outside casing 8.

As shown in Figure 3, the sheathing is The outer edge of the blind stop is concealed in the ished usually laid againstthe studding' and terminates a considerable distance from the narrow blind stop. A pieces. of sheathing were laidclose to the blind stop 'in an attempt to exclude cold air, an imperfect joint, not an air-tight one would be formed between thesheathlng and the blind stop and the ends of the sheathing would present a rough ufieven surface for contact with the adjacent sash-weiht and interfere materially withv freedom 0 move- Figure 4 1s a horizontal sectional view' through one jamb of a window frame showment of the weight. Generally, therefore,

in constructing a building, the sheathing;

has been terminated at a point on the opposite side of the sash weight pocket from the blind sto'p, even though such a con It the ends of the lEi struction allows considerable cold air to enter the building around the window frame.

To exclude cold air from the building and at the same time provide a smooth vertical grain surface for contact with the sash weights, 1' provide for an extension of the narrow blind stop consisting of a piece of stock lumber 9 of standard dimensions which may be furnished the builder by any dealer, matched to form a wind-tight abutting joint with the edge of the narrow stop and form a smooth continuation thereof outwardly from the iamb to close that side of the sash weight pocket against the entrance of cold air and form a smooth surface for contact with the sash weight. 'lhe narrow stops '2' in the manufacture of the trains are provided with grooves 11 in all cases whether a wide or narrow blind stop construction is to be employed. It the frame is set in the buildingas shown in Figure 3, then the groove 11 in the narrow stop would have 110 function, but whenever it is desired to employ the wide blind stop con struction, the groove 11 is in position to receive the matched piece of lumber which may be found in the standard stool: of dealers. lhus the frame is readily adapted for use with a narrow blind stop as received from the manufacturer or by the simple addition of a standard piece of lumber on each side of the jainb, a wide blind stop is provided with all the advantages resulting from such a construction. This matched joint between the narrow blind stop and the standard piece of lumber not only serves to exclude dust and wind from entrance to the building around the window frame,'but serves to hold the piece of lumher in alignment and in the plane oi the narrow stop and facilitates the conversion. of the narrow stop frame to one with a wide stop. The piece of board 9 is shown extending outwardly and lapping by the joint of the adjacent studding as this con-- struction may, in some instances be preierred, the outer edge of the piece 0" board 9' having the usual groove 12 incidental to matched lumber, with no special function whenused as shown in the construction of Figure 2.

In Figure 5, the same structure is shown. except that the section 13 of the wide blind stop is narrower than the one shown in Figure so that the outer edge oi this section terminates short of the joint between the studding. In both casesfi have shown a tongueqand groove joint 14L- between the outer edge ofthe window jambs i and the vnarrow blind step.

In Figure 6, the invention is shown ap-v plied to a mullion type of. window. the ambs at the middle of the wlndow corresponding to those on each side and having a vertical piece out board 15 between them teases-e connected by tongue and groove joints 16 with the blind stops which correspond substantially to those heretofore described. These blind stops 7 shown at the center of the .mullion window in Figure 6 are partially covered by the outside casing 8 provided at this point in the window.

In several of the above described figures, l have shown the window jarnb rabbeted at i to receive the edge of a casing strip or board 45 forming the inner wall of the sash weigh pocket. llhis construction provides "for an air-tight joint between the board 4i and the jamb and aids in preventing cold air from. entering the building around the window frame. (Irene-rally this board l is set up against the face of the jarnb without any attempt to provide a tight joint. Ely improvement contemplates an air-tight joint on both sides of the sash weight pocket and embodies a distinct improvement in window construction.

In Figure f. a modified form of blind stop 7 is provided having a ship l .p joint 17 with the wider section 13*- of t -e blind stop, other respects the structure being substantially the same described reference to the. other ures. This ship lap joint operates event the cold air from enterthe boil stop in substantially I same n oer as the tongue groove construction of other figures.

lln F G, sectional view is shown of the head of 1e window frame in which 18 represents the narrow blind stop the top ot the window and 19 continuation or extension of this stop havin a tongue outside casing covers edge oi the sheathing stndding at the head oi; ingthe blind stop and the lath and 2 The dealer who has in stoclr a narrow blind stop frame without 4 1e groove shown in Figure 3 n the outer edge, has never been position to this iime for use in a wide stop construction without rebuilding the frame. Hence as a dealer had de id for a frame and o for one with a wide blind stop, he was compelled carry two stool:

A. 1 J. us stop sue. the lower E23 renresents the 5" me separate inside casing 24-.-

or what has been generally done, he been.

around the blind I roove joint 20 therewith. A head 21 oi the "row blind sto'o nd the presence of this wide blind stop in a frame was confusing to builders who did not understand; its use. y My invention consists in givingv to the dealer a frame with a blind stop of the same width as in frames he has always carried and consequently of no greater cost, and which on account of the groove 11 is readily adapted to frames where a wide blind stop is desired. I With this construction, I am able to ive to the trade a frame having a narrow lind stop and sold at the price of a narrow blindstop frame, which can also be used in the better jobs where a wide 15 blind stop is desired. This invention en- 1 whic of frame.

ables me to furnish one type of frame to the trade that fills two distinct demands already exist and .which has never before. been filled by one and the same type When a dealer attempted to carry as his one and only stock frame at a considerable extra cost, a frame with a solid wide blind stop in one piece, many an noying and expensive mistakes were made by those not familiar with this type of frame. The same dealers who attach enough importance to a wide blind stop to have all of their frames made this way, i. e., with wide stops, will now with my invention be in position to give to the builders whowant Q a wide blind stop frame or who can be shown how to use such a frame, one that is adapted to be used with a wide blind stop, and still have in the same stock. a

. frame that can be furnished to others who are familiar with and want none but the older and cheaper narrow blind stop frame. lit is impracticable for a dealer who wants both typesof frames to carry a double stock, as a stock of frames must be very extensive to cover all of the various sizes of windows, doors and casement sash, and to double this stock to be able to give the customer either a narrowblind stop frame or a wide blind stop frame would not be practicable. This is evident by the factthat whereas practically every dealer in the country would agree that a wide blind stop is an excellent construction and theywould be glad to be able to furnish it for thebetter class of jobs, there is no d ealer known to the trade who carries any wide blind stop frames. on hand except for brick wall construction and for which construction he stop carries only wide blind sto s.

frame is furnished to dealers who want the With this invention, it is only necessary to carry one type or st 1e of frame in stock; that is the one with t e narrow blind stop having the grooved outer edge. Such a narrow blind stop construction for less ex? pensive buildings or where no particular pains are taken to exclude cold air and dust around the window "frame. Whenever a call is received for a frame with a wide blind stop, it is only necessary forthe dealer to supply stock pieces of lumber having edges adapted to form dust and wind-proof joints with the narrow blind stops and form lateral extensions thereof substantially in the plane of the sheathing. Thus the dealer is able to supply all demands for window frame construction and only be obligedfto carry a single type of frame in stock.

I claim as my invention: 7 1. In a window frame, a narrow blind stop adapted td-be inserted between the jamb and the outside casing, and a board wider than said stop and having an edge to edge closed joint therewith and forming a continuation of said stop.

2. A window frame comprising a sill and jambs mounted thereon, narrow blind stops secured to the outer edges of the jambs be:

tween them and the outside casing and permanently secured in the window frame when it isbu ilt, and stock pieces of boards adapted to be inserted after-the framb is built. and having edges to abut the outer edges of said narrow stops and form closed joints therewith and extending outwardly in the plane of the narrow stops to form wide blind stops. I 3. A method of making a window frame which consists in placing a Iiarrow strip of material between the outside casing and the jum'b to form a narrow blind stop and adapting the outer edge of such strip to casing, sheathing secured to said studding if in the plane of said stops and spaced therefrom, and standard pieces of lumber llll adapted to form a closejoint with said them and said sheathing whereby a window frame with a narrow stop is provlded for -narrow stops and close the gaps between one type of building or by the addition of standard piecesof lumber, the same frame may be converted to one with a'wide blind for another type'of building construction.

5. A window frame comprising a sill and jambs thereon, inside and outside casings, narrow blind stops interposed between said jambs and said outside casing, said blind stglps havingouter greov'ed edges and standar pieces of lumber having tongues on one edge to enter said grooves and form dust and wind-proof joints therewith, and wherei a frame may be, used with a narrow b ind stop alone in one type of building I or the same frame with the addition of standard piecesof lumber will be provided with wide blind stops to adapt the frame for a building of another type.

6. A window frame comprising a sill and side and head jambs therefor, outside casings for said side and head jainbs, narrow blind stops interposed between said casings and said side and head jambs, and standard pieces of lumber having their edges abutting the outer edges of said blind stops in the plane thereof and forming closed joints therewith and whereby the same frame is adapted for use with narrow or wide blind stops.

' '4'. A window frame for frame buildings con'iprising a sill and side jambs thereon, outside casings for said frame, narrow blind stops interposed between the outer edges of the side jainbs and said casing and projccting outwardly beyond the front face of said ambs and being flush substantially with back or rear face of said jarnbs, said blind stops having longitudinal grooves in their rear edges, a studding spaced from said side jambs and cooperating therewith to form walls of sash weight pockets, a"

sheathing secured to said studding in the plane substantially of said stops, and pieces of matched lumber having tongues to enter the grooves of said blind stops and form wind and dust-proof joints therewith, also seated on said studding whereby the same frame is adapted for a building of ehea er rade having narrow blind stos or a building of better grade with wide blind stops.

8. A window frame for frame buildings comprising a sill and side and head jarnbs therefor, a studding spaced from said side jambs and cooperating therewith to form opposite walls of sash weight pockets, an outside casing having its inner edges i'iush substantially with the inner faces oi: said side jambs, comparatively narrow strips forming narrow blind stops interposed between said outside casing andsaid side jambs in planes at right angles to the plane of said side jarnbs and having their inner edges projecting beyond the races of said. side jainbs and said outside casing, the outer edges of said blind stops having longitudinal grooves therein, a sheathing secured to said studding and spaced from said jainbs, standard pieces of lumber adapted to be inserted between said narrow stops and the ends of said sheathing and secured to said studding and having longitudi i tongues to enter the grooves said narrow stops and form tight joints therewith,

whereby standard stock frames equi aed with narrow blind stops at the factor for use in cheaper grades of building construction, may by the addition of standard pieces of lumber become adapted witl'iout change for use in better grades of ouilding requiring wide blind stops.

in witness whereof, I have hereunto set my hand this 8th day of @ctober, 1925.

FRED C. 

